<?php

/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Books
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: VolumeQuery.php 16971 2009-07-22 18:05:45Z mikaelkael $
 */

/**
 * Zend_Gdata_Books
 */
require_once('Zend/Gdata/Books.php');

/**
 * Zend_Gdata_Query
 */
require_once('Zend/Gdata/Query.php');

/**
 * Assists in constructing queries for Books volumes
 *
 * @category   Zend
 * @package    Zend_Gdata
 * @subpackage Books
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Gdata_Books_VolumeQuery extends Zend_Gdata_Query
{

	/**
	 * Create Gdata_Books_VolumeQuery object
	 *
	 * @param string|null $url If non-null, pre-initializes the instance to
	 *        use a given URL.
	 */
	public function __construct($url = null)
	{
		parent::__construct($url);
	}

	/**
	 * Sets the minimum level of viewability of volumes to return in the search results
	 *
	 * @param string|null $value The minimum viewability - 'full' or 'partial'
	 * @return Zend_Gdata_Books_VolumeQuery Provides a fluent interface
	 */
	public function setMinViewability($value = null)
	{
		switch ($value) {
			case 'full_view':
				$this->_params['min-viewability'] = 'full';
				break;
			case 'partial_view':
				$this->_params['min-viewability'] = 'partial';
				break;
			case null:
				unset($this->_params['min-viewability']);
				break;
		}
		return $this;
	}

	/**
	 * Minimum viewability of volumes to include in search results
	 *
	 * @return string|null min-viewability
	 */
	public function getMinViewability()
	{
		if (array_key_exists('min-viewability', $this->_params)) {
			return $this->_params['min-viewability'];
		} else {
			return null;
		}
	}

	/**
	 * Returns the generated full query URL
	 *
	 * @return string The URL
	 */
	public function getQueryUrl()
	{
		if (isset($this->_url)) {
			$url = $this->_url;
		} else {
			$url = Zend_Gdata_Books::VOLUME_FEED_URI;
		}
		if ($this->getCategory() !== null) {
			$url .= '/-/' . $this->getCategory();
		}
		$url = $url . $this->getQueryString();
		return $url;
	}

}
